There is zero problem with position player depth. There has not been a problem with it at any point this year. And Tapia starting a bunch of games is not really a problem - all teams have players of that quality starting a big chunk of games at some point.
Pitching depth issues this year are a function of bad luck AND the system not producing fruit AND some unexpected underperformances (all the AAA SP depth being completely worthless) AND probably a tough offseason when it comes to attracting free agents because of border s***. I don't think it's fair to slam them.
I mean they addressed the bullpen at the 2021 deadline and brought in multiple controllable relievers. They did that again this deadline. In the last year they have acquired Yimi Garcia, David Phelps, Trevor Richards, Adam Cimber, Zach Pop, and Anthony Bass. Literally 6 out of the 8 RP right now are acquisitions over the last calendar year. Also the two rentals Hand (ugh) and Soria last deadline. Traded for Berrios. Signed Gausman. Signed Kikuchi (ugh). Traded for White. Traded for Strip as a forward looking move in 2020 to help for these years.
All they do is add, improve, in a more-often-than-not positive way. They are always deliberate and smartly adding pitching and other depth where needed.
I don't actually know what you complainers all want. It's like you think this is easy and there aren't 29 other teams, most of which are very competent, fighting them for every available asset.
Players like Trevor Richards would have projected very well in the offseason for the record. I mean even right now his xFIP is 3.98; he probably has better projections than most of the RP arms that were considered at the trade deadline. That he has LOOKED like a lost cause over a few dozen innings this year is more noise than signal and a good example of the randomness that can make fans think that teams were fatally flawed from the start when they really weren't.